text: The "Barking Dog" is an exothermic chemical reaction that results from the ignition of a mixture of carbon disulfide and nitrous oxide. When ignited in a cylindrical tube, the reaction produces a bright flash and a loud "woof" - reminiscent of a barking dog.
  In simple terms, the Barking Dog reaction is a combustion process, in which a fuel (carbon disulfide, CS) reacts with an oxidizing agent (nitrous oxide, NO), producing heat and elemental sulfur.  The flame front in the reaction is a zone of very hot, luminous gas, produced by the reactants decomposing.
  :8 NO + 4 CS → S + 4 CO + 8 N
  In April 1853, Justus von Liebig performed the demonstration in front of the Bavarian royal family; however, the glass container shattered, and shards of glass inflicted minor injuries on the faces of Queen Therese, her son Prince Luitpold, and Liebig himself.